Home / 25,640,887.80-38,461,331.70-7,689,991.80

Finding the Fourth Proportional to 25,640,887.80, 38,461,331.70 and 7,689,991.80

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Solution

The fourth proportional to 25,640,887.80, 38,461,331.70 and 7,689,991.80 is: 11,534,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640,887.80 : 38,461,331.70 = 7,689,991.80 : x
  2. Step 2: Convert to fraction form
    25,640,887.80/38,461,331.70 = 7,689,991.80/x
  3. Step 3: Cross multiply
    25,640,887.80x = 38,461,331.70 × 7,689,991.80
  4. Step 4: Simplify right side
    25,640,887.80x = 295,767,325,390,080.06
  5. Step 5: Solve for x
    x = 295,767,325,390,080.06/25,640,887.80
  6. Step 6: Final answer
    x = 11,534,987.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.